Patents Examined by Allison G Fitzsimmons
  • Patent number: 10822253
    Abstract: Methods for removing anions from an aqueous solution include contacting the aqueous solution with an initial organic phase composition in a primary stage to form a first mixture, the initial organic phase composition including a quaternary amine and a weak organic acid; separating a nitrate-depleted raffinate from the first mixture; mixing the remaining organic phase (now containing nitrate) with a first basic solution to obtain a second mixture; separating an aqueous phase sulfate-containing scrub solution from the second mixture; mixing the remaining organic phase with a second basic solution to form a third mixture; and separating the third mixture into an aqueous phase nitrate-rich solution and a secondary organic phase composition. The secondary organic phase composition can be recycled. The raffinate, the sulfate-containing scrub solution, and the nitrate-rich solution can then be further processed.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: November 3, 2020
    Assignee: Winner Water Services
    Inventors: Gary Alan Kordosky, David Bruce Dreisinger, Michael Schrock
  • Patent number: 10808660
    Abstract: A water separation element is provided with a cylindrical woven fabric screen for separating water. The woven fabric screen is made of woven fabric yarns positioned angularly relative to each other. A first annular support piece is arranged at a first end face of the woven fabric screen and is fixedly connected to a rim area of the woven fabric screen. The first annular support piece has a lateral edge facing the woven fabric screen. The woven fabric screen is flowed through in radial direction. The woven fabric yarns of the woven fabric screen are positioned, at least over sections, at an angle greater than 0° and smaller than 90° relative to the facing lateral edge of the first annular support piece. A second annular support piece is connected to the second end face. A filter element and a filter device with such a water separation element are provided.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 20, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Frank Pflueger, Idriss Razgani, Martin Veit
  • Patent number: 10800136
    Abstract: Disclosed, among other things, are ways to manufacture layered structures. In one embodiment, a foaming process may produce layered structures in reduced density plastics with or without integral skins. In another embodiment, a foaming process may produce deep draw structures in reduced density plastics with or without integral skins. In yet another embodiment, a foaming process may utilize additives, blends, or fillers, for example. In yet another embodiment, a foaming process may involve saturating a semi-crystalline polymer such as Polylactic Acid (PLA) with high levels of gas, and then heating, which may produce a reduced density plastic having high levels of crystallinity. These processes may be used to generate products with layered structures.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: October 13, 2020
    Assignee: Corumat, Inc.
    Inventor: Michael Waggoner
  • Patent number: 10781122
    Abstract: Laundry, industrial or food processing wastewater is purified to the degree that it can be reused. Water quality is ensured through the final process of reverse osmosis (“RO”) which removes dissolved contaminants such as mineral hardness, soils and residual detergents. The process combines a ceramic tubular cross-flow membrane filter to remove the suspended solids, oils and greases ahead of the RO. The RO process employs high temperature, low fouling membranes. This enables the RO process to operate sustainably, i.e. without fouling, plugging or membrane degradation.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 22, 2020
    Inventors: Carroll Gorrell, Gerard Johan Van Gils
  • Patent number: 10744446
    Abstract: A fabric material composite construction, for use as a filter means or media, characterized in that said construction comprises a combination of one or more nanofiber layers and a synthetic single-thread squarely knitted precision fabric.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: August 18, 2020
    Assignee: SAATI S.P.A.
    Inventors: Paolo Canonico, Liuba Napoli
  • Patent number: 10730018
    Abstract: There is described a method of use of a mass exchanger. In the method the mass exchanger comprises: a first channel for accommodating flow of a liquid to be treated; and a second channel for accommodating flow of a treatment agent, the first and second channels have a permeable membrane provided between them, so as to allow transfer of selected species between the first channel and the second channel. The steps of the mass transfer method comprise passing the liquid to be treated along the first channel and introducing a mixture of liquid and gas into the second channel to provide a two-phase treatment agent. It is desirable to provide a means of adjusting the concentration of gas species in a liquid such as blood, while simultaneously controlling the temperature of the liquid and optionally adjusting the concentration of ionic and/or dissolved species in that liquid. By this method and mass exchanger providing a two-phase treatment agent, it is possible to simultaneously deliver gaseous species (e.g.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: August 4, 2020
    Assignee: Haemair Limited
    Inventors: William R. Johns, Alan F. Evans, Ronald K. Knight
  • Patent number: 10717052
    Abstract: A hybrid type filtration structure for filtering liquid includes a first active layer, a porous supporting layer and a permeable layer. The first active layer has a first nano pore inner wall of which a function group included compound is combined with. The porous supporting layer has a plurality of pores and is disposed under the first active layer. The permeable layer is disposed under the porous supporting layer. The porous supporting layer includes a plurality of lipid bilayers having membrane protein inside of the pore, a molecule of water selectively passes through the membrane protein. The first nano pore passes through the first active layer vertically. The first nano pore and the pore are connected with each other through which liquid flows.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: July 21, 2020
    Inventors: Jeong-Hwan Kim, Yeong-Eun Yoo, Jae-Sung Yoon, Tae-Joon Jeon, Sun Min Kim, Seung-Hyun Kim, Moon-Ki Kim, Dae-Joong Kim, Yun Jung Lee, Young-Rok Kim, Young-Ho Seo, No-Won Kim
  • Patent number: 10710005
    Abstract: An adsorbent material is provided. The adsorbent material comprises a porous, non-particulate substrate comprising pores having a size in the range of about 1 ?m to about 1 mm, and a conformal coating film deposited on the porous, non-particulate substrate, wherein the conformal coating film comprises topographical features having a feature size in the range of about 1 nm to about 1 ?m. A method of preparing the adsorbent material and an adsorbent device are also provided.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: July 14, 2020
    Assignee: Agency for Science, Technology and Research
    Inventors: Yi Ren, Sing Yang Chiam, Lai Mun Wong
  • Patent number: 10710028
    Abstract: A multilayer composite membrane consists essentially of a porous support layer, an inorganic porous layer, a polymer porous layer, and a separation layer. The inorganic porous layer consists of inorganic particles and is disposed on the porous support layer. The polymer porous layer is disposed on the inorganic porous layer. The separation layer is disposed on the polymer porous layer.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: July 14, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Han Chung, Min-Fei Tsai, Guan-You Lin, Yen-Cheng Li
  • Patent number: 10703661
    Abstract: The present invention relates to a method for purifying water using at least one unit for trapping one or more ions and at least one membrane filtration unit, wherein an aqueous stream is withdrawn from a source and is fed to the aforementioned unit for trapping one or more ions, wherein the aqueous stream leaving the aforementioned unit is fed to the aforementioned membrane filtration unit, and at least one concentrate stream and one permeate stream are obtained in said membrane filtration unit, wherein at least part of the aforementioned one or more ions that are trapped is added to the aforementioned permeate stream to obtain a permeate stream enriched with one or more ions.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 7, 2020
    Assignee: OASEN N.V.
    Inventors: Almohanad Abed Elqader Mohammed Abusultan, Walterus Gijsbertus Joseph Van der Meer
  • Patent number: 10696574
    Abstract: A method for treating reverse osmosis concentrated water, comprises adding precipitant and oxidant to reverse osmosis concentrated water for treatment, filtering to obtain clear liquid, and adding catalyst for water treatment to clear liquid for catalytic oxidation to obtain a first-stage treated water. Optionally, the liquid may be subjected after catalytic oxidation to an adsorption treatment; performing reverse osmosis treatment on first-stage treated water to obtain second-stage reverse osmosis product water and second-stage reverse osmosis concentrated water; and adding oxidant to second-stage reverse osmosis concentrated water for oxidation treatment to obtain directly discharged effluent water. The obtaining of effluent water may further comprise subjecting liquid after oxidation treatment to adsorption treatment. The above method can recycle 75-85 wt % of water, and operates easily.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: June 30, 2020
    Assignee: Wanhua Chemical Group Co., Ltd.
    Inventors: Hongke Zhang, Zhenlong Fan, Junjun Wang, Xiaogao Liu, Meirong Duan, Bo Zhou, Rui Wang, Hua Heng, Weiqi Hua
  • Patent number: 10688439
    Abstract: An integrated forward osmosis-membrane distillation (FO-MD) module and systems and methods incorporating the module is disclosed providing higher efficiencies and using less energy. The FO-MD module is osmotically and thermally isolated. The isolation can prevent mixing of FO draw solution/FO permeate and MD feed, and minimize dilution of FO draw solution and cooling of MD feed. The module provides MD feed solution and FO draw solution streams that flow in the same module but are separated by an isolation barrier. The osmotically and thermally isolated FO-MD integrated module, systems and methods offer higher driving forces of both FO and MD processes, higher recovery, and wider application than previously proposed hybrid FO-MD systems.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 23, 2020
    Inventors: Noreddine Ghaffour, Lijo Francis, Zhenyu Li, Rodrigo Valladares, Ahmad S. Alsaadi, Muhannad Abu Ghdaib, Gary Amy
  • Patent number: 10682599
    Abstract: Provided are filter media for liquid filters and a method of manufacturing the same, in which a thin filter layer is formed and the content of nanofibers weighs light, by laminating a low weight nanofiber web on a porous nonwoven fabric, and thus a less differential pressure is applied before and after filtering, to thereby increase a pass flow rate. The filter medium includes: a porous support that plays a strength support role; and a nanofiber web that is laminated on one side of the porous support and is made of nanofibers of a polymer material, in which the nanofiber web comprises fine pores of a three-dimensional structure, through which a liquid to be treated passes, wherein content of the nanofibers is less than 5 gsm.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: June 16, 2020
    Assignee: AMOGREENTECH CO., LTD.
    Inventors: Jun Sik Hwang, In Yong Seo
  • Patent number: 10675570
    Abstract: Water treatment apparatus, including: a ceramic filter; and a flow apparatus operable to pass water through the ceramic filter in a forward direction so as to filter the water, the flow apparatus also operable to pass water through the ceramic filter in a reverse direction so as to remove material from the ceramic filter, whereby material having been deposited by filtration of the water is removed.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: June 9, 2020
    Inventor: Kyle Anthony Wolff
  • Patent number: 10669178
    Abstract: The present invention relates to a method for treating industrial water containing organic matter, said method comprising: a step of physical separation producing wastes and an effluent; a step of adsorption of at least one part of said organic matter present in said effluent on at least one adsorbent resin chosen from the group comprising the non-ionic cross-linked resins and the microporous carbon resins; a step of reverse osmosis filtration downstream from said adsorption step.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: June 2, 2020
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Mouloud Hendou, Camille Sagne
  • Patent number: 10653981
    Abstract: A filter element for fluids, in particular for hydraulic fluid, has a foldable filter casing (10) with at least one filter layer (18, 20, 22, 24) extending between two end caps (26, 32). To vary in regions the thickness of the filter casing (10), the height (h1) of each filter fold (12, 44) increases from one end cap (26) to the other end cap (32). Alternatively, with the filter fold height (h1) being maintained, the outer diameter (40) of the filter casing (10) varies in the direction of one of the end caps (26, 32).
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 19, 2020
    Inventors: Andreas Schunk, Dominic Schneider
  • Patent number: 10653986
    Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 19, 2020
    Assignee: Hollingsworth & Vose Company
    Inventors: Stephen T. Cox, William S. Freeman, Mark S. Millar, John A. Wertz
  • Patent number: 10629918
    Abstract: The present invention provides a fuel cell stack with enhanced freeze-thaw durability. In particular, the fuel cell stack includes a gas diffusion layer between a membrane-electrode assembly and a bipolar plate. The gas diffusion layer has a structure that reduces contact resistance in a fuel cell and is cut at a certain angle such that the machine direction (high stiffness direction) of GDL roll is not in parallel with the major flow field direction of the bipolar plate, resulting in an increased GDL stiffness in a width direction perpendicular to a major flow field direction of a bipolar plate.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Bo Ki Hong, Kook Il Han, Sae Hoon Kim, Jae Jun Ko
  • Patent number: 10603896
    Abstract: There is described an installation (01; 02) for recycling wiping solution of one or more intaglio printing presses (10) comprising a flocculation tank (12) for inducing flocculation of ink constituents contained in waste solution coming from the one or more intaglio printing presses (10), a processing tank (14) for pre-treating the waste solution for subsequent filtering, and a filtering unit (15), preferably a filter press unit, for filtering the waste solution coming from the processing tank (14) and producing recycled solution at an output of the filtering unit (15), which recycled solution is recycled to produce fresh wiping solution for use by the one or more intaglio printing presses (10). According to one embodiment, the installation (01) further comprises a centrifugation unit (13) for separating the waste solution coming from the flocculation tank (12) by centrifugation into precipitate and centrifuged supernatant, which centrifuged supernatant is fed to the processing tank (14).
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: March 31, 2020
    Assignee: KBA-NOTASYS SA
    Inventors: Giacomo Martini, Veronique Nery
  • Patent number: 10597310
    Abstract: Method of recovering iron and/or phosphorus from sludge of waste water treatment plants, said sludge being obtained after precipitation by iron salts, wherein said method comprises separating sludge from waste water and submitting said sludge to a lactic fermentation to release a liquid phase where iron and phosphorus are dissolved. Lactic fermentation is performed with addition of a co-substrate rich in carbon, preferably rich in carbohydrate, in one single step of biological acidification or a sequencing biological acidification in two steps by first releasing phosphorus from the PAO contained in the sludge. Iron can then be recovered by means of a cationic exchange resin. Phosphorus can be recovered as struvite or calcium phosphate from the remaining solution substantially free from iron ions, after a precipitation step in presence of a magnesium or calcium source and a pH above 7.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: March 24, 2020
    Assignee: Technologies pour I'Environnement et I'Agriculture (IRSTEA)
    Inventors: Marie-Line Daumer, Etienne Braak